Ok, so what I was trying to say is that I was originally having an issue with stumbling and severe bucking when going uphill around 4,000 rpm. That's the most accurate description I can think of. That seemed to resemble similar issues other people have said they had when their cam synchronizer went bad and some said that it could be wire and plug related. No codes were set as others have noted. I bought the 2003 Ranger truck used, maybe 20k miles ago, and it has 150k miles on it now. It looked like it still had the original wires and plugs so it made sense to me that it may be time to replace them. I rely on a Haynes manual for everything, so when I did the wires, I set them up just like the manual described. It showed a picture of the engine with a coil pack on page 1-3. That proved to be a mistake. The thing would turn over but wouldn't start and still not show any codes. I checked everything out maybe three or more times and even labeled the wires in two places with tape and a marker pen. When I was looking for a real mechanic that would do house calls, Kevin at the Bisbee, AZ traffic circle, showed me a coil pack from a 3.0 engine and noted that it had the location diagram for the wires printed on it's top surface. When I cleaned mine off I could see that it was the same . The set up recommended by Haynes didn't work. The one printed on the Motorcraft coil pack did work. Just sayin . . . So far I haven't done the synchro thingie or had a chance to test drive up a hill but I have great expectations and I'm hoping my post helps someone else. Good luck and happy trails to all of us. Thanks for everything amigos.